package chapter09

/**
  * @Copyright: Shanghai Definesys Company.All rights reserved.
  * @Description:
  * @author: chuhaitao
  * @since: 2019/1/12 15:01
  * @history:
  *          1.2019/1/12 created by chuhaitao
  */
class MinxinDemo4 {

}


trait Operate{
  def insert(n1:Int)
}

trait File extends Operate{

 // override def insert(){}
}